S The Irish Nahiralist. January, 



unnamed lough adjoining L. Nageeragh, yielded one solitary 

 piece of N. transliicens, Agardh. The little lough on 

 Iniscoo yielded some excellent specimens of A^. transliicens 

 and C. fragilis, Desv. 



The twelfth and the one lough which repaid search was 

 L. Mullaghderg. The rock end of this lake is in close 

 proximity to the sandhills which run along the coast line 

 and it has in consequence a sandy bottom on this northern 

 shore. Here C. fragilis and C. aspera, Willd., were growing 

 in great abundance, as also another little Chara which 

 seems to be an unusual variety or form of C. contraria 

 Kuetz. Growing with these was a Nitella long past its 

 prime but retaining its heads of ripe fruit which showed 

 it to be either A^. flexilis, Agardh, or N. opaca, Agardh. 

 Near by, in a pool among the sandhills, grew some few 

 specimens of C. hispida, Linn., and C. vulgaris, Linn. This 

 embraced the extent of our Chara finds, and certainly does 

 not add much to previous records. N. translucens is, I 

 think, new to W. Donegal, and so are C. aspera and C. 

 fragilis. 



The area which goes by the name of the Rosses is all of 

 granitic formation and large granite rocks and boulders 

 lie scattered over the country giving it a peculiarly bare 

 and desolate appearance. Similar rocks and boulders form 

 the beds of many of the lakes. This makes dredging a 

 serious difficulty. The drag is constantly liable to become 

 wedged between immovable masses of stone, and the danger 

 of losing this most indispensable implement makes the 

 collector nervous in his use of it. Even with due care 

 and a char}^ employment my drag became immovably 

 fixed on two occasions and could only be released, once 

 by means of a boat, another time by means of a long cord 

 carried round to an opposite shore of the lake. 



To imply that a thorough examination of the above 

 mentioned lakes was made would be misleading. Boats 

 were not available on most of the lakes, and, as I said, 

 dredging from the shore was attended by considerable 

 risk. But the margins of the lakes were inspected with 

 some care and note made of the character of the vegetation 

 thrown up on their banks as giving some indication of the 



